1600 GTE/GSi ignition wiring.

[brian]

I just want to point out how important what Aragorn said in another topic is.
I posted up a while back about getting inconsistant spark in the rally car after wiring the engine. it came and went and was weak and strong.
Aragorn pointed out which i didn't know there is a resistance in the coil black wire from early 1.0 / 1.2. and that the black from the 1600 plug needs to be connected back to a switched live instead of the black by the old 1.0 coil.
I did this tonight and sure enough i have perfect constant spark now. in previous times when wiring these engines in road cars i have obviously been lucky to get away with using the black wire by the coil but this one time i was caught out and was very confussed by it.

[Ste_Nova]

where is the resistor... i've never found it

[2litreturbo]

me neither! it is only on the 1600's?

[mowgli]

The resistor is only on non injection cars.
It is actually a wire with an in-built resistance so it drops the feed voltage to the coil to 6v. there is an extra wire from the starter back to the coil that supplies extra voltage for the start up, when the voltage from the battery dips due to the extra current draw for the starter motor.
the wire is clear (from memory), and is part of the loom.

[brian]

yes there is a clear wire in this loom which i never saw before so its probably it.
and ste..... mowgli just answered what you don't seem to believe

[mikeyredtop]

i had te same problem but the spark wasnt doing much and would miss under load. glad i know this aftre i scrapped...

[2litreturbo]

. there is an extra wire from the starter back to the coil that supplies extra voltage for the start up, when the voltage from the battery dips due to the extra current draw for the starter motor.

what terminal on the starter motor does this wire run from? and i take it goes to the +15 side of the coil?

Thanks

[Ste_Nova]

yes but where is it????

i've got a 1.4 in my 1.0... and i can't find it